Source/DebuggerBackEnd.h

   1 /*
   2  * MacGDBp
   3  * Copyright (c) 2007 - 2011, Blue Static <http://www.bluestatic.org>
   4  *
   5  * This program is free software; you can redistribute it and/or modify it under the terms of the GNU
   6  * General Public License as published by the Free Software Foundation; either version 2 of the
   7  * License, or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
  10  * even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11  * General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License along with this program; if not,
  14  * write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
  15  */
  16
  17 #import <Cocoa/Cocoa.h>
  18
  19 #import "Breakpoint.h"
  20 #import "ProtocolClient.h"
  21 #import "StackFrame.h"
  22
  23 @protocol DebuggerBackEndDelegate;
  24 @class DebuggerModel;
  25 @class VariableNode;
  26
  27 // The DebuggerBackEnd is the communication layer between the application
  28 // and the back-end debugger. Clients issue debugger commands via this class,
  29 // which are sent in an asynchronous manner. Reads are also asynchronous and
  30 // the primary client of this class should set itself as the delegate. The
  31 // primary unit that this class deals with is the StackFrame; clients should
  32 // maintain a stack structure and the BackEnd will inform the delegate when
  33 // a new frame is created or the stack should be destroyed.
  34 @interface DebuggerBackEnd : NSObject<ProtocolClientDelegate>
  35
  36 // Human-readable status of the connection.
  37 @property(readonly, copy, nonatomic) NSString* status;
  38
  39 // Whether the debugger should detach immediately after being contacted by the
  40 // backend. YES means all debugger connections will be dropped.
  41 @property(assign, nonatomic) BOOL autoAttach;
  42
  43 // The model object to update in response to changes in the debugger.
  44 @property(assign, nonatomic) DebuggerModel* model;
  45
  46 @property(assign, nonatomic) id<DebuggerBackEndDelegate> delegate;
  47
  48 // initializer
  49 - (id)initWithPort:(NSUInteger)aPort;
  50
  51 // getter
  52 - (NSUInteger)port;
  53 - (BOOL)isConnected;
  54
  55 // communication
  56 - (void)run;
  57 - (void)stepIn;
  58 - (void)stepOut;
  59 - (void)stepOver;
  60 - (void)stop;
  61 - (void)detach;
  62
  63 // Breakpoint management.
  64 - (void)addBreakpoint:(Breakpoint*)bp;
  65 - (void)removeBreakpoint:(Breakpoint*)bp;
  66
  67 // Evaluates a given string in the current execution context.
  68 - (void)evalScript:(NSString*)str callback:(void (^)(NSString*))callback;
  69
  70 // Takes a partially loaded stack frame and fetches the rest of the information.
  71 - (void)loadStackFrame:(StackFrame*)frame;
  72
  73 // Ensures that a variable node's immediate children are loaded, and fetches
  74 // any that are not. This is done within the scope of the given stack frame.
  75 - (void)loadVariableNode:(VariableNode*)variable
  76            forStackFrame:(StackFrame*)frame;
  77
  78 @end
  79
  80 // Delegate ////////////////////////////////////////////////////////////////////
  81
  82 @protocol DebuggerBackEndDelegate <NSObject>
  83
  84 // Passes up errors from SocketWrapper and any other errors generated by the
  85 // GDBpConnection.
  86 - (void)errorEncountered:(NSString*)error;
  87
  88 // Called when the socket connects. Passed up from SocketWrapper.
  89 - (void)debuggerConnected;
  90
  91 // Called when we disconnect.
  92 - (void)debuggerDisconnected;
  93
  94 // Tells the debugger that new source is available for the given frame.
  95 // TODO: rename to |-frameUpdated:|.
  96 - (void)sourceUpdated:(StackFrame*)frame;
  97
  98 @end
  99